Changed how rockets and flares get added to the attack heli when using fixcars command:
Fixcars 1 -> Inserts 1 row of flares
Fixcars 2 -> Inserts 1 row of flares and HV
Fixcars 3 -> Inserts 1 row of flares, HV and Incen
Fixcars (with no parameters) -> Gives flares and HV's (behaviour remains the same)